[Histonet] reagents without expiration dates

[Jennifer MacDonald]

I had a student that was working in a lab with old dry powders.  One that 
I recall had a "date opened" of 1942.




WILLIAM DESALVO <wdesalvo.cac <@t> hotmail.com> 
Sent by: histonet-bounces <@t> lists.utsouthwestern.edu
02/02/2012 03:04 PM

To
<rjbuesa <@t> yahoo.com>, histonet <histonet <@t> lists.utsouthwestern.edu>, 
<talulahgosh <@t> gmail.com>
cc

Subject
RE: [Histonet] reagents without expiration dates







Many, many, many years ago back in the 80's, I worked for Sigma-Aldrich 
and was visiting Charles Churukian's lab. He had a full wall of his lab 
with shelves, floor to ceiling, of dried and liquid Sigma reagents. He had 
every lab chemical and reagent I knew and was very proud that he was a 
great Sigma customer. The labels were none that I had seen in 10 yrs 
working at Sigma, so I took a few containers down and read the 
manufacturing code. The oldest was sodium bisulfate, gallon container, 
manufactured in 1946. Most were 20-30 yrs old then and in large 
quantities. I have always thought to myself, with many more customers like 
Chuck, Sigma could go out of business. I miss Chuck, but I bet he is still 
teaching the heavens everything they need to know about Histology and 
Staining. I don't know if that beats your stuff, but I bet the chemicals 
Chuck left behind are still in use. 

William DeSalvo, B.S., HTL(ASCP)

 

> Date: Thu, 2 Feb 2012 13:14:53 -0800
> From: rjbuesa <@t> yahoo.com
> To: histonet <@t> lists.utsouthwestern.edu; talulahgosh <@t> gmail.com
> Subject: Re: [Histonet] reagents without expiration dates
> CC: 
> 
> Ha.Ha,Ha!!!!!!!!!!!
> I used to prepare staining solutions with some "Merck-Darmstad" anilines 
manufactured just after the "Great War", i.e. the FIRST World War (about 
1925 before the World Great Depression).
> Try to beat that!.
> René J.
> 
> --- On Thu, 2/2/12, Emily Sours <talulahgosh <@t> gmail.com> wrote:
> 
> 
> From: Emily Sours <talulahgosh <@t> gmail.com>
> Subject: Re: [Histonet] reagents without expiration dates
> To: histonet <@t> lists.utsouthwestern.edu
> Date: Thursday, February 2, 2012, 3:33 PM
> 
> 
> I've always wanted to have a contest to see who had the oldest reagents.
> My lab once had something that was 20 years old.
> 
> Emily
> 
> The whole point of this country is if you want to eat garbage, balloon 
up
> to 600 pounds and die of a heart attack at 43, you can! You are free to 
do
> so. To me, that’s beautiful.
> --Ron Swanson
> 
> 
> 
> On Thu, Feb 2, 2012 at 2:07 PM, WILLIAM DESALVO 
<wdesalvo.cac <@t> hotmail.com>wrote:
> 
> >
> > Per SOP, we relabel, list date of receipt, test for quality and then 
apply
> > a 12 month expiration date. We re-test after 12 months and continue to 
use,
> > with 12 month dating, as long as the reagent meets quality standards 
set in
> > the SOP.
> >
> > William DeSalvo, B.S., HTL(ASCP)
> >
> >
> >
> > > From: kstoll <@t> mcw.edu
> > > To: histonet <@t> lists.utsouthwestern.edu
> > > Date: Thu, 2 Feb 2012 12:56:58 -0600
> > > Subject: [Histonet] reagents without expiration dates
> > >
> > > Could anyone share a policy to deal with regents that do not have a
> > manufacturer's expiration date?
> > > CAP checklist ANP 21382
> > >
> > > Thanks,
> > > Kathryn Stoll, HT(ASCP)
> > > Depatment of Pathology
> > > Medical College of Wisconsin
> > > 9200 W Wisconsin Ave
> > > Milwaukee WI 53226
> > > 414.805.1525
> > > kstoll <@t> mcw.edu
> > >
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